July 2017
Beginner
208 pages
3h 7m
English
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Chapter 5. Creating Interactive Scripts
This chapter shows how to read the keyboard in order to create interactive scripts.
The topics covered in this chapter are:
- How to use the
readbuilt-in command to query the keyboard. - The different ways to use
read. - The use of traps (interrupts).
The reader will learn how to create interactive scripts.
The scripts we have looked at up to this point have run without much user interaction. The read command is used to create scripts that can query the keyboard. The code can then take action based on the input.
Here is a simple example:
Chapter 5 - Script 1
#!/bin/sh # # 5/16/2017 # echo "script1 - Linux Scripting Book" echo "Enter 'q' to quit." rc=0 while [ $rc -eq 0 ] do echo -n "Enter a string: " read str echo "str: ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.